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Intermittent check engine light
Posted 29 April 2004 - 02:32 PM
Posted 29 April 2004 - 02:33 PM
Posted 29 April 2004 - 04:13 PM
Posted 30 April 2004 - 06:39 AM
Posted 30 April 2004 - 08:20 AM
That, or you knock sensor is cracked. Have a look from above, should be able to see it below the rear of the intake manifold.
Posted 30 April 2004 - 09:09 AM
Posted 30 April 2004 - 01:53 PM
Posted 30 April 2004 - 01:55 PM
You need to check the codes as Josh says. A faulty temperature sensor can bring up intermittent check engine light. In my case it occured about 5 minutes after start up and was up for about 3 minutes. However when I checked the resistance of the sensor it appeared to be within specification. This went on for about 6 months before it finally caused a problem by latching up all the radiator fans.
I have been getting an intermittent check engine light lately with my EJ22 NA, auto box (ugh). Last night it came on and I emmediately pulled of into a Wendy's lot and checked all the fluids. The oil is at proper level, exactly at the divet for "hot" full, the coolant is fine, and the engine was not making any sounds like a knock or anything. The light stayed on while idling, but after I turned it off and restarted the light did not come back. The idle has been varying slightly lately, like +/- around 100rpm, but not too much. It is smooth as ever. Could this be due to a dirty O2 sensor, or MAF? Thanks in advance, I really don't want to pay a shop to do a OBDII scan.
Perhaps this is the cause of your rough idling also. It is one of the transducers that causes hard starting.
Posted 04 May 2004 - 04:37 PM
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